The next time you step up to the sink at an airport bathroom, your own face may not be all you see in the mirror. Two companies, Clear Channel Airports and Mirrus, have teamed up to design digital ads that are now being displayed on bathroom mirrors at Chicago’s O’Hare International Airport.

The high-definition ads look like large posters until you step up to the mirror, at which point they shrink into one corner — allowing you to see both the ad and your own reflection while you wash your hands, adjust your combover or touch up your lip gloss. You can see how the ads work in the following video from Mirrus:

Relentless advertising is nothing new to air travelers, of course. In recent years, several airlines have experimented with putting ads on airplane tray tables, and the TSA has put them in some of its bins at security checkpoints. At least they’re not appearing inside the bathroom stalls — yet.